Force and consensual are two totally different meanings.
Coerced bi wives
It would all be consensual.
Welcome.. but sorry my husband doesn't force me into anything while swinging. .. if it just happens it does . Over 25 years swinging and yes we have tried it all.
Good luck in your inquiry.. couples we have met where the husband forced the wife into anything.. from "bi play to actual swinging" it just did not work out as they planned.
Id love to meet some couples where the husbands "force" their wives to be with a woman. Please only serious inquiries. Be ready to verify.